Home / 764,641.80-1,146,962.70-646,543.80

Finding the Fourth Proportional to 764,641.80, 1,146,962.70 and 646,543.80

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Solution

The fourth proportional to 764,641.80, 1,146,962.70 and 646,543.80 is: 969,815.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,641.80 : 1,146,962.70 = 646,543.80 : x
  2. Step 2: Convert to fraction form
    764,641.80/1,146,962.70 = 646,543.80/x
  3. Step 3: Cross multiply
    764,641.80x = 1,146,962.70 × 646,543.80
  4. Step 4: Simplify right side
    764,641.80x = 741,561,622,516.26
  5. Step 5: Solve for x
    x = 741,561,622,516.26/764,641.80
  6. Step 6: Final answer
    x = 969,815.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.